2018 Volume 72 Issue 6 Pages 329-331
Tannic acid（TA）was immobilized onto a glycidyl methacrylate-grafted fiber. The TA-immobilized fiber（TA fiber）with a TA content of 25 ％ was applicable to the collection of vanadium（V）from the spring water of Mt. Fuji. The contact in a batch mode for 1 day of the 1 g TA fiber with 1 L spring water containing V at a concentration of 58 μg-V/L led to collection of 70 ％. The amount of V adsorbed onto the TA fiber was quantitatively eluted with 0.5 M hydrochloric acid. In addition, the amount of V adsorbed remained constant after the third cycle of repeated adsorption and elution of V.